A servo motor 100 with a built-in drive circuit in which, when power is off, positional data including multiple-rotation counting values is stored in a nonvolatile memory 200. Thereby eliminate battery back-up, and in which the C PU of a drive control circuit portion is in charge of the...
A servo motor drives a spindle shaft 120 through an endless belt and a pulley. When uniformity test is carried out, a chuck claw 222 chucks the fixed ring 320 of the upper rim 20 and rotation of the spindle causes rotation of a rotary shaft 250 and an intermediate shaft 240. When ...
It contains a two-stage electro-hydraulic flow servo valve with an inductive position sensor, a control cylinder or rotation motor, two by-pass valves and two position sensors on the cylinder. Electrical fault and failure detection for the position drive is achieved without using additional ...
;CONSTITUTION: The position of a mobile part 1 detected by a detecting sensor 7 arranged within the normal operation range of the mobile part 1 and the position of the mobile part 1 which is detected by an incremental encoder 3 and is dependent upon the rotation state of a servo motor 2...
Rotation of the motor 150 is converted by a screw-and-nut into linear motion of a magnetic core 200 which varies the linkage between a primary winding 204 and opposed secondaries 202 to provide an A.C. error signal of variable magnitude and reversible phase to control a motor 38 which ...